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Horn of Africa
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Map of the Horn of Africa, highlighting the core countries of Somalia, Ethiopia, Eritrea, and Djibouti in solid light green, with Sudan, South Sudan, Kenya, and Uganda shown in striped light green to indicate broader definitions. Surrounding countries and bodies of water, including the Red Sea, Gulf of Aden, and Indian Ocean, are also labeled. An inset globe marks the region's location in Africa. The Simen Mountains rise above the green Ethiopian Plateau, with dramatic peaks under a blue sky with scattered clouds in northwestern Ethiopia. Fishers stand on the sandy shore and in shallow water near small boats at the port of Mogadishu, Somalia, with weathered buildings and dark clouds in the background. Thematic map of the Horn of Africa showing major peoples and language areas, with regions shaded to indicate where Semitic languages (in pink) and Cushitic languages (in green) are spoken. The map highlights ethnic groups such as Amhara, Tigray, Oromo, Somali, and Sidamo across Ethiopia, Eritrea, Somalia, and surrounding areas. View of the Horn of Africa from space, showing the arid landmass jutting into the ocean, with scattered clouds and the curve of the Earth visible.
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Mount Kenya in Mount Kenya National Park is the highest mountain in Africa. UNESCO World Heritage Site. Giant Lobelia in foreground. (Mt. Kenya; Mt. Kenya National Park; mountains; rugged mountain; African geography, African landscape, stratovolcano)
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Church of Saint George (Bet Giyorgis), Lalibela, Ethiopia. UNESCO World Heritage site.
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Map of the Horn of Africa, highlighting the core countries of Somalia, Ethiopia, Eritrea, and Djibouti in solid light green, with Sudan, South Sudan, Kenya, and Uganda shown in striped light green to indicate broader definitions. Surrounding countries and bodies of water, including the Red Sea, Gulf of Aden, and Indian Ocean, are also labeled. An inset globe marks the region's location in Africa.
Horn of Africa

Horn of Africa

region, eastern Africa
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Top Questions

What countries are included in the Horn of Africa?

What bodies of water surround the Horn of Africa?

What are the main languages spoken in the Horn of Africa?

Horn of Africa, region of eastern Africa, the easternmost extension of African land. Its location along the Red Sea, the Gulf of Aden, and the Indian Ocean has made the Horn of Africa an important crossroads for trade, migration, and the spread of religious and cultural traditions between Africa and Southwest Asia.

The Simen Mountains rise above the green Ethiopian Plateau, with dramatic peaks under a blue sky with scattered clouds in northwestern Ethiopia.
Ethiopia: Simien Mountains and Ethiopian PlateauSimien Mountains, rising on the Ethiopian Plateau in northwestern Ethiopia.

For the purposes of this article, the Horn of Africa is defined as the region that is home to the countries of Djibouti, Eritrea, Ethiopia, and Somalia, whose cultures have been linked throughout their long history. Other definitions of the Horn of Africa are more restrictive and exclude some or all of the countries of Djibouti, Eritrea, and Ethiopia. There are also broader definitions, the most common of which includes all the countries mentioned above, as well as parts or all of Kenya, Sudan, South Sudan, and Uganda. Part of the Horn of Africa region is also known as the Somali peninsula; this term is typically used when referring to lands of Somalia and eastern Ethiopia.

Fishers stand on the sandy shore and in shallow water near small boats at the port of Mogadishu, Somalia, with weathered buildings and dark clouds in the background.
Somali coastFishers and boats along the coast of Mogadishu, Somalia.

The Horn contains such diverse regions as the coastal areas of Eritrea and Somalia, the highlands of the Ethiopian Plateau, and the Ogaden desert. The region’s coasts are washed by the Red Sea, the Gulf of Aden, and the Indian Ocean. Because of this strategic location, the Horn of Africa has long facilitated commercial exchange and cultural interaction between Africa and the Middle East.

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Church of Saint George (Bet Giyorgis), Lalibela, Ethiopia. UNESCO World Heritage site.
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Thematic map of the Horn of Africa showing major peoples and language areas, with regions shaded to indicate where Semitic languages (in pink) and Cushitic languages (in green) are spoken. The map highlights ethnic groups such as Amhara, Tigray, Oromo, Somali, and Sidamo across Ethiopia, Eritrea, Somalia, and surrounding areas.
Peoples and language areas of the Horn of Africa

Many groups of people make their home in the Horn of Africa, such as the Amhara, Tigray, Oromo, and Somali peoples. Owing to proximity, the people of the region have long had contact with those of the Arabian Peninsula and Southwest Asia, and speak Afro-Asiatic languages related to those of North Africa and the Middle East.

Islam and Christianity have both been practiced in the Horn of Africa for many centuries. The region was home to powerful states such as the kingdom of Aksum, which participated in Red Sea trade and in the 4th century ce became one of the earliest kingdoms to adopt Christianity. Later Christian dynasties there built upon this legacy and formed the foundation of the modern Ethiopian state. Historical Islamic states in the region include Ifat and Adal, both of which came into conflict with the Christian dynasties of Ethiopia beginning in the 14th century.

For more information on the individual countries in the region, see Djibouti; Eritrea; Ethiopia; Somalia.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Amy McKenna.